Basement Sewer Pipe Set In Concrete Wall - Plumbing - DIY Home Improvement | DIYChatroom

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Old 03-13-2012, 10:18 AM   #1
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Basement sewer pipe set in concrete wall

Our house is about 100 years old and in the basement, the cast iron sewer pipe is half-encases in concrate wall. I have no idea why or when this was done, but only half of the pipe is visible and the whole wall/pipe area is coated in about 10 layers of Drylock or similar substance. Well, this pipe seems to be coming to the end of it's lifespan since there are several rust-spots showing through the Drylock.

Not only is the pipe half-encased (including cleanout access!), the part where the plumbing from upstairs ties in is totally encased concrete. It's really crazy.

So we're wondering what our options are. (I know, the best advice is to get estimates from local pros, and we're in the process of doing that.) But I'm more just wondering if anyone has ever seen such a setup before. Was this common practice is days gone by, or was it just some crazy contractor or homeowner?



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Old 03-13-2012, 10:31 AM   #2
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Without a picture it's hard to say why it was done.


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Old 03-14-2012, 01:16 PM   #3
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Here are links to photos of the pipe, so you can see what we're dealing with.
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Old 03-14-2012, 01:29 PM   #4
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I see this every once and awhile. Around here, some basement walls are stone. the inside is eventually coated with mortar- like yours. Chances are the new piping take the same route as your old pipe. The pipe exiting the house will be the toughest part.
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Old 03-15-2012, 08:26 AM   #5
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The first plumber to give us an estimate quoted $2500 to bypass this section of pipe. He said chiseling the old one out would be too much work, too expensive, etc. I suppose he might be right since it's about a 20ft section and a framed in wall would have to be removed. But an additional pipe sitting next to or on top of the existing poses a problem since the existing passes through the basement stairs on it's way to the front of the house and out. Because of this, the stairs already narrow at the bottom anyway making them a bit of a hazard (God love old houses!). Seems to me another pipe butted in there would make matters worse.

I don't suppose those sleeving or relining processes actually work, do they? I'd love to avoid all the chiselling if possible.
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